package com.atguigu.gulimall.member.exception;

/**
 * @Classname UsernameExistException
 * @Description
 * @Date 2021/9/14 16:29
 * @Author Anonymous
 */
public class UsernameExistException extends RuntimeException {
    public UsernameExistException() {
        super("用户名存在");
    }
}
